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authorTimothy Warren <tim@timshomepage.net>2012-01-24 22:37:20 +0100
committerTimothy Warren <tim@timshomepage.net>2012-01-24 22:37:20 +0100
commit8f9e93dd37ae0090c9b4117138cd3135bfe3f67a (patch)
tree3f49040d696e760381642f2d2ffa407cee1dc039 /system/libraries/Image_lib.php
parentde15a0b7377db0ef3b1d43508401be3c2927c0ff (diff)
parent96db8f91c34c18119548cacc4692362f51e70407 (diff)
Merge branch 'develop' of git://github.com/EllisLab/CodeIgniter into develop
Diffstat (limited to 'system/libraries/Image_lib.php')
-rw-r--r--system/libraries/Image_lib.php243
1 files changed, 102 insertions, 141 deletions
diff --git a/system/libraries/Image_lib.php b/system/libraries/Image_lib.php
index 20ca1f055..a226ae8f8 100644
--- a/system/libraries/Image_lib.php
+++ b/system/libraries/Image_lib.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
@@ -18,7 +18,7 @@
*
* @package CodeIgniter
* @author EllisLab Dev Team
- * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
* @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
* @link http://codeigniter.com
* @since Version 1.0
@@ -67,8 +67,8 @@ class CI_Image_lib {
public $wm_padding = 0; // Padding around text
public $wm_hor_offset = 0; // Lets you push text to the right
public $wm_vrt_offset = 0; // Lets you push text down
- public $wm_font_color = '#ffffff'; // Text color
- public $wm_shadow_color = ''; // Dropshadow color
+ protected $wm_font_color = '#ffffff'; // Text color
+ protected $wm_shadow_color = ''; // Dropshadow color
public $wm_shadow_distance = 2; // Dropshadow distance
public $wm_opacity = 50; // Image opacity: 1 - 100 Only works with image
@@ -85,7 +85,7 @@ class CI_Image_lib {
public $create_fnc = 'imagecreatetruecolor';
public $copy_fnc = 'imagecopyresampled';
public $error_msg = array();
- public $wm_use_drop_shadow = FALSE;
+ protected $wm_use_drop_shadow = FALSE;
public $wm_use_truetype = FALSE;
/**
@@ -111,7 +111,6 @@ class CI_Image_lib {
*
* Resets values in case this class is used in a loop
*
- * @access public
* @return void
*/
public function clear()
@@ -154,7 +153,6 @@ class CI_Image_lib {
/**
* initialize image preferences
*
- * @access public
* @param array
* @return bool
*/
@@ -167,7 +165,33 @@ class CI_Image_lib {
{
foreach ($props as $key => $val)
{
- $this->$key = $val;
+ if (property_exists($this, $key))
+ {
+ if (in_array($key, array('wm_font_color', 'wm_shadow_color')))
+ {
+ if (preg_match('/^#?([0-9a-f]{3}|[0-9a-f]{6})$/i', $val, $matches))
+ {
+ /* $matches[1] contains our hex color value, but it might be
+ * both in the full 6-length format or the shortened 3-length
+ * value.
+ * We'll later need the full version, so we keep it if it's
+ * already there and if not - we'll convert to it. We can
+ * access string characters by their index as in an array,
+ * so we'll do that and use concatenation to form the final
+ * value:
+ */
+ $val = (strlen($matches[1]) === 6)
+ ? '#'.$matches[1]
+ : '#'.$matches[1][0].$matches[1][0].$matches[1][1].$matches[1][1].$matches[1][2].$matches[1][2];
+ }
+ else
+ {
+ continue;
+ }
+ }
+
+ $this->$key = $val;
+ }
}
}
@@ -334,22 +358,6 @@ class CI_Image_lib {
$this->y_axis = ($this->y_axis == '' OR ! is_numeric($this->y_axis)) ? 0 : $this->y_axis;
// Watermark-related Stuff...
- if ($this->wm_font_color != '')
- {
- if (strlen($this->wm_font_color) == 6)
- {
- $this->wm_font_color = '#'.$this->wm_font_color;
- }
- }
-
- if ($this->wm_shadow_color != '')
- {
- if (strlen($this->wm_shadow_color) == 6)
- {
- $this->wm_shadow_color = '#'.$this->wm_shadow_color;
- }
- }
-
if ($this->wm_overlay_path != '')
{
$this->wm_overlay_path = str_replace("\\", "/", realpath($this->wm_overlay_path));
@@ -359,6 +367,10 @@ class CI_Image_lib {
{
$this->wm_use_drop_shadow = TRUE;
}
+ elseif ($this->wm_use_drop_shadow == TRUE AND $this->wm_shadow_color == '')
+ {
+ $this->wm_use_drop_shadow = FALSE;
+ }
if ($this->wm_font_path != '')
{
@@ -376,18 +388,11 @@ class CI_Image_lib {
* This is a wrapper function that chooses the proper
* resize function based on the protocol specified
*
- * @access public
* @return bool
*/
public function resize()
{
- $protocol = 'image_process_'.$this->image_library;
-
- if (preg_match('/gd2$/i', $protocol))
- {
- $protocol = 'image_process_gd';
- }
-
+ $protocol = ($this->image_library === 'gd2') ? 'image_process_gd' : 'image_process_'.$this->image_library;
return $this->$protocol('resize');
}
@@ -399,18 +404,11 @@ class CI_Image_lib {
* This is a wrapper function that chooses the proper
* cropping function based on the protocol specified
*
- * @access public
* @return bool
*/
public function crop()
{
- $protocol = 'image_process_'.$this->image_library;
-
- if (preg_match('/gd2$/i', $protocol))
- {
- $protocol = 'image_process_gd';
- }
-
+ $protocol = ($this->image_library === 'gd2') ? 'image_process_gd' : 'image_process_'.$this->image_library;
return $this->$protocol('crop');
}
@@ -422,7 +420,6 @@ class CI_Image_lib {
* This is a wrapper function that chooses the proper
* rotation function based on the protocol specified
*
- * @access public
* @return bool
*/
public function rotate()
@@ -453,7 +450,6 @@ class CI_Image_lib {
if ($this->image_library == 'imagemagick' OR $this->image_library == 'netpbm')
{
$protocol = 'image_process_'.$this->image_library;
-
return $this->$protocol('rotate');
}
@@ -474,7 +470,6 @@ class CI_Image_lib {
*
* This function will resize or crop
*
- * @access public
* @param string
* @return bool
*/
@@ -484,20 +479,14 @@ class CI_Image_lib {
// If the target width/height match the source, AND if the new file name is not equal to the old file name
// we'll simply make a copy of the original with the new name... assuming dynamic rendering is off.
- if ($this->dynamic_output === FALSE)
+ if ($this->dynamic_output === FALSE AND $this->orig_width == $this->width AND $this->orig_height == $this->height)
{
- if ($this->orig_width == $this->width AND $this->orig_height == $this->height)
+ if ($this->source_image != $this->new_image AND @copy($this->full_src_path, $this->full_dst_path))
{
- if ($this->source_image != $this->new_image)
- {
- if (@copy($this->full_src_path, $this->full_dst_path))
- {
- @chmod($this->full_dst_path, FILE_WRITE_MODE);
- }
- }
-
- return TRUE;
+ @chmod($this->full_dst_path, FILE_WRITE_MODE);
}
+
+ return TRUE;
}
// Let's set up our values based on the action
@@ -586,7 +575,6 @@ class CI_Image_lib {
*
* This function will resize, crop or rotate
*
- * @access public
* @param string
* @return bool
*/
@@ -601,9 +589,7 @@ class CI_Image_lib {
if ( ! preg_match("/convert$/i", $this->library_path))
{
- $this->library_path = rtrim($this->library_path, '/').'/';
-
- $this->library_path .= 'convert';
+ $this->library_path = rtrim($this->library_path, '/').'/convert';
}
// Execute the command
@@ -656,7 +642,6 @@ class CI_Image_lib {
*
* This function will resize, crop or rotate
*
- * @access public
* @param string
* @return bool
*/
@@ -740,7 +725,6 @@ class CI_Image_lib {
/**
* Image Rotate Using GD
*
- * @access public
* @return bool
*/
public function image_rotate_gd()
@@ -793,7 +777,6 @@ class CI_Image_lib {
*
* This function will flip horizontal or vertical
*
- * @access public
* @return bool
*/
public function image_mirror_gd()
@@ -808,11 +791,8 @@ class CI_Image_lib {
if ($this->rotation_angle == 'hor')
{
- for ($i = 0; $i < $height; $i++)
+ for ($i = 0; $i < $height; $i++, $left = 0, $right = $width-1)
{
- $left = 0;
- $right = $width-1;
-
while ($left < $right)
{
$cl = imagecolorat($src_img, $left, $i);
@@ -828,11 +808,8 @@ class CI_Image_lib {
}
else
{
- for ($i = 0; $i < $width; $i++)
+ for ($i = 0; $i < $width; $i++, $top = 0, $bot = $height-1)
{
- $top = 0;
- $bot = $height-1;
-
while ($top < $bot)
{
$ct = imagecolorat($src_img, $i, $top);
@@ -878,7 +855,6 @@ class CI_Image_lib {
* This is a wrapper function that chooses the type
* of watermarking based on the specified preference.
*
- * @access public
* @param string
* @return bool
*/
@@ -899,7 +875,6 @@ class CI_Image_lib {
/**
* Watermark - Graphic Version
*
- * @access public
* @return bool
*/
public function overlay_watermark()
@@ -993,12 +968,9 @@ class CI_Image_lib {
{
$this->image_display_gd($src_img);
}
- else
+ elseif ( ! $this->image_save_gd($src_img))
{
- if ( ! $this->image_save_gd($src_img))
- {
- return FALSE;
- }
+ return FALSE;
}
imagedestroy($src_img);
@@ -1012,7 +984,6 @@ class CI_Image_lib {
/**
* Watermark - Text Version
*
- * @access public
* @return bool
*/
public function text_watermark()
@@ -1031,21 +1002,6 @@ class CI_Image_lib {
// Fetch source image properties
$this->get_image_properties();
- // Set RGB values for text and shadow
- $this->wm_font_color = str_replace('#', '', $this->wm_font_color);
- $this->wm_shadow_color = str_replace('#', '', $this->wm_shadow_color);
-
- $R1 = hexdec(substr($this->wm_font_color, 0, 2));
- $G1 = hexdec(substr($this->wm_font_color, 2, 2));
- $B1 = hexdec(substr($this->wm_font_color, 4, 2));
-
- $R2 = hexdec(substr($this->wm_shadow_color, 0, 2));
- $G2 = hexdec(substr($this->wm_shadow_color, 2, 2));
- $B2 = hexdec(substr($this->wm_shadow_color, 4, 2));
-
- $txt_color = imagecolorclosest($src_img, $R1, $G1, $B1);
- $drp_color = imagecolorclosest($src_img, $R2, $G2, $B2);
-
// Reverse the vertical offset
// When the image is positioned at the bottom
// we don't want the vertical offset to push it
@@ -1065,7 +1021,9 @@ class CI_Image_lib {
if ($this->wm_use_truetype == TRUE)
{
if ($this->wm_font_size == '')
- $this->wm_font_size = '17';
+ {
+ $this->wm_font_size = 17;
+ }
$fontwidth = $this->wm_font_size-($this->wm_font_size/4);
$fontheight = $this->wm_font_size;
@@ -1090,11 +1048,11 @@ class CI_Image_lib {
switch ($this->wm_vrt_alignment)
{
- case "T" :
+ case 'T':
break;
- case "M": $y_axis += ($this->orig_height/2)+($fontheight/2);
+ case 'M': $y_axis += ($this->orig_height/2)+($fontheight/2);
break;
- case "B": $y_axis += ($this->orig_height - $fontheight - $this->wm_shadow_distance - ($fontheight/2));
+ case 'B': $y_axis += ($this->orig_height - $fontheight - $this->wm_shadow_distance - ($fontheight/2));
break;
}
@@ -1104,32 +1062,48 @@ class CI_Image_lib {
// Set horizontal alignment
switch ($this->wm_hor_alignment)
{
- case "L":
+ case 'L':
break;
- case "R":
- if ($this->wm_use_drop_shadow)
- $x_shad += ($this->orig_width - $fontwidth*strlen($this->wm_text));
- $x_axis += ($this->orig_width - $fontwidth*strlen($this->wm_text));
+ case 'R':
+ if ($this->wm_use_drop_shadow)
+ {
+ $x_shad += ($this->orig_width - $fontwidth*strlen($this->wm_text));
+ $x_axis += ($this->orig_width - $fontwidth*strlen($this->wm_text));
+ }
break;
- case "C":
- if ($this->wm_use_drop_shadow)
- $x_shad += floor(($this->orig_width - $fontwidth*strlen($this->wm_text))/2);
- $x_axis += floor(($this->orig_width -$fontwidth*strlen($this->wm_text))/2);
+ case 'C':
+ if ($this->wm_use_drop_shadow)
+ {
+ $x_shad += floor(($this->orig_width - $fontwidth*strlen($this->wm_text))/2);
+ $x_axis += floor(($this->orig_width - $fontwidth*strlen($this->wm_text))/2);
+ }
break;
}
- // Add the text to the source image
- if ($this->wm_use_truetype)
+ if ($this->wm_use_drop_shadow)
{
- if ($this->wm_use_drop_shadow)
+ /* Set RGB values for text and shadow
+ *
+ * First character is #, so we don't really need it.
+ * Get the rest of the string and split it into 2-length
+ * hex values:
+ */
+ $txt_color = str_split(substr($this->wm_font_color, 1, 6), 2);
+ $txt_color = imagecolorclosest($src_img, hexdec($txt_color[0]), hexdec($txt_color[1]), hexdec($txt_color[2]));
+ $drp_color = str_split(substr($this->wm_shadow_color, 1, 6), 2);
+ $drp_color = imagecolorclosest($src_img, hexdec($drp_color[0]), hexdec($drp_color[1]), hexdec($drp_color[2]));
+
+ // Add the text to the source image
+ if ($this->wm_use_truetype)
+ {
imagettftext($src_img, $this->wm_font_size, 0, $x_shad, $y_shad, $drp_color, $this->wm_font_path, $this->wm_text);
imagettftext($src_img, $this->wm_font_size, 0, $x_axis, $y_axis, $txt_color, $this->wm_font_path, $this->wm_text);
- }
- else
- {
- if ($this->wm_use_drop_shadow)
+ }
+ else
+ {
imagestring($src_img, $this->wm_font_size, $x_shad, $y_shad, $this->wm_text, $drp_color);
imagestring($src_img, $this->wm_font_size, $x_axis, $y_axis, $this->wm_text, $txt_color);
+ }
}
// Output the final image
@@ -1155,7 +1129,6 @@ class CI_Image_lib {
* This simply creates an image resource handle
* based on the type of image being processed
*
- * @access public
* @param string
* @return resource
*/
@@ -1212,7 +1185,6 @@ class CI_Image_lib {
* Takes an image resource as input and writes the file
* to the specified destination
*
- * @access public
* @param resource
* @return bool
*/
@@ -1273,7 +1245,6 @@ class CI_Image_lib {
/**
* Dynamically outputs an image
*
- * @access public
* @param resource
* @return void
*/
@@ -1309,7 +1280,6 @@ class CI_Image_lib {
* This function lets us re-proportion the width/height
* if users choose to maintain the aspect ratio when resizing.
*
- * @access public
* @return void
*/
public function image_reproportion()
@@ -1350,7 +1320,6 @@ class CI_Image_lib {
*
* A helper function that gets info about the file
*
- * @access public
* @param string
* @return mixed
*/
@@ -1369,26 +1338,24 @@ class CI_Image_lib {
}
$vals = getimagesize($path);
-
$types = array(1 => 'gif', 2 => 'jpeg', 3 => 'png');
-
- $mime = (isset($types[$vals['2']])) ? 'image/'.$types[$vals['2']] : 'image/jpg';
+ $mime = (isset($types[$vals[2]])) ? 'image/'.$types[$vals[2]] : 'image/jpg';
if ($return == TRUE)
{
- $v['width'] = $vals['0'];
- $v['height'] = $vals['1'];
- $v['image_type'] = $vals['2'];
- $v['size_str'] = $vals['3'];
- $v['mime_type'] = $mime;
-
- return $v;
+ return array(
+ 'width' => $vals[0],
+ 'height' => $vals[1],
+ 'image_type' => $vals[2],
+ 'size_str' => $vals[3],
+ 'mime_type' => $mime
+ );
}
- $this->orig_width = $vals['0'];
- $this->orig_height = $vals['1'];
- $this->image_type = $vals['2'];
- $this->size_str = $vals['3'];
+ $this->orig_width = $vals[0];
+ $this->orig_height = $vals[1];
+ $this->image_type = $vals[2];
+ $this->size_str = $vals[3];
$this->mime_type = $mime;
return TRUE;
@@ -1410,7 +1377,6 @@ class CI_Image_lib {
* 'new_height' => ''
* );
*
- * @access public
* @param array
* @return array
*/
@@ -1458,7 +1424,6 @@ class CI_Image_lib {
* $array['ext'] = '.jpg';
* $array['name'] = 'my.cool';
*
- * @access public
* @param array
* @return array
*/
@@ -1475,17 +1440,16 @@ class CI_Image_lib {
/**
* Is GD Installed?
*
- * @access public
* @return bool
*/
public function gd_loaded()
{
if ( ! extension_loaded('gd'))
{
- if ( ! dl('gd.so'))
- {
- return FALSE;
- }
+ /* As it is stated in the PHP manual, dl() is not always available
+ * and even if so - it could generate an E_WARNING message on failure
+ */
+ return (function_exists('dl') AND @dl('gd.so'));
}
return TRUE;
@@ -1496,7 +1460,6 @@ class CI_Image_lib {
/**
* Get GD version
*
- * @access public
* @return mixed
*/
public function gd_version()
@@ -1517,7 +1480,6 @@ class CI_Image_lib {
/**
* Set error message
*
- * @access public
* @param string
* @return void
*/
@@ -1549,7 +1511,6 @@ class CI_Image_lib {
/**
* Show error messages
*
- * @access public
* @param string
* @return string
*/